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AF FIRSTS
1903 -- The First Heavier-than-Air Flight
1907-1911 -- Signal Corps No. 1, the Army's First Airplane
1908 -- First Fatality in a Powered Aircraft
1909 -- First Air Arm Flying School
1923 -- The Beginnings of Inflight Refueling
1947 -- Breaking the Sound Barrier
1948 -- Integrating the Air Force
EARLY HISTORY
1907-1947 -- The Lineage of the US Air Force
1926 -- The U.S. Army Air Corps Act
1935 -- The General Headquarters Air Force
1943-1947 - Struggle for Air Force Independence
1947 -- The National Security Act of 1947
1947-1990 -- Headquarters USAF Reorganization
1953 -- The Emergence of the Strategic Air Command
Evolution of the Department of the Air Force
One Hundred Ten Years of Flight: Chronology 1903-2012
Timeline: A Century of Air and Space Power 1903-2003